CN105879594A - Helium-containing water-soluble gas dehumidifying method without helium loss - Google Patents
Helium-containing water-soluble gas dehumidifying method without helium loss Download PDFInfo
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- CN105879594A CN105879594A CN201610358126.5A CN201610358126A CN105879594A CN 105879594 A CN105879594 A CN 105879594A CN 201610358126 A CN201610358126 A CN 201610358126A CN 105879594 A CN105879594 A CN 105879594A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/265—Drying gases or vapours by refrigeration (condensation)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
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- Drying Of Gases (AREA)
Abstract
The invention discloses a helium-containing water-soluble gas dehumidifying method without helium loss. The method comprises the following steps: (1) using a compressor for compressing helium-containing water-soluble gas; cooling and separating liquid, wherein the water content is reduced to 0.5-2%; feeding the compressed helium-containing water-soluble gas after liquid separation into an air dryer for further dehumidifying, and reducing the water content to below 5000 ppm; feeding the dry helium-containing gas at the outlet of the air dryer into a dehumidifying film separator, and reducing the water content to below 100ppm; feeding the dry gas at a non-permeating gas outlet of the dehumidifying film into a helium extracting film separator for extracting helium; causing the gas at the non-permeating side outlet of the helium extracting film separator return to a permeating side inlet of the helium extracting film separator for purging; sending the permeating gas to the outside through the permeating side outlet; using a vacuum pump for pumping the water-containing gas acquired at the permeating side water and purging gas outlet of the dehumidifying film separator to the outside.
Description
Technical field
The present invention relates to helium and extract field, be specially the Water Soluble Gas dehumidification method Han helium.
Background technology
Along with developing rapidly of modern science and technology, helium application is the most wide, China's helium natural resources shortage.China's helium development of resources that is found to be containing helium Water Soluble Gas indicates a new direction, and China or even the whole world water-soluble helium extractive technique there is no precedent.Containing containing substantial amounts of steam in helium Water Soluble Gas, impact refined on helium is very big, no matter which kind of mode to extract helium by and is required for removing steam.
Summary of the invention
Technical problem solved by the invention be to provide a kind of there is no that helium loses containing helium Water Soluble Gas dehumidification method, thus solve the problem in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions: (1) uses compressor will contain helium Water Soluble Gas (room temperature-100 DEG C, aqueous about 1-80%, containing helium 0.1%～10%, remaining is methane, nitrogen) it is compressed, Normal squeezing to 0.2-1.0MPa；
(2) compression that step (1) is obtained carry out cooling down containing helium Water Soluble Gas, separatory, wherein water content is down to about 0.5-2%；
(3) compression after step (2) separatory is sent into the further dehumidification of cooling driers containing helium Water Soluble Gas, water content is down to 5000 below ppm (0-10 DEG C)；
(4) by step (3) cooling driers export more be dried containing helium gas send into dehumidification membrane separator, dehumidification film is strongly hydrophilic material, only water vapor permeable, and other gas component is not through.Water content can be down to below 100ppm；
(5) the dry gas (0.2-1.0MPa) that step (4) dehumidification film impermeable gas exports is sent into helium helium and extract membrane separator extraction helium；
(6) helium of step (5) is extracted the dehumidification membrane separator per-meate side entrance purging that membrane separator impermeable side (0.2-1.0MPa) exit portion gas returns in step (3)；Infiltration gas (containing helium 10%～90%) is sent to out-of-bounds by per-meate side outlet；
(7) step (6) dehumidification membrane separator per-meate side steam and purge gas export aqueous (different according to temperature and purging tolerance, water content is up to the 0.1～4%) gas obtained to be pumped outside out-of-bounds by vacuum pump.
Step (4) dehumidification membrane permeation blowing gas is the impermeable gas (tail gas) of step (6).
Step (7) dehumidification membrane separator per-meate side content of water in gas is about 0.1～4%.
Owing to have employed above technical scheme, the method have the advantages that the present invention contains dehumidification film used by helium Water Soluble Gas dehumidification method is strongly hydrophilic material, only water vapor permeable, and other gas component is not through, and does not results in helium loss in drying.Present invention Water Soluble Gas dehumidification method Han helium make use of the feature that membrane separation technique membrane separator impermeable gas (tail gas) water content is low, impermeable gas pressure the most relatively low (0.05～0.1MPa) simultaneously, utilize a portion as dehumidification membrane separator per-meate side purge gas, need not additionally arrange dry source purge gas, can effectively reduce dehumidification membrane permeation simultaneously and survey water vapor partial pressure, it is ensured that dehumidification effect.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the present invention.
In figure 1, compressor；2, cooling driers；3, dehumidification membrane separator；4, dehumidification membrane separator impermeable side；5, dehumidification membrane separator per-meate side；6, dehumidification membrane separator impermeable gas；7, vacuum pump；8, dehumidification membrane separator infiltration gas；9, helium film separator；10, helium film separator impermeable side；11, helium film separator per-meate side；12, helium film separator infiltration gas；13, purge gas；14, helium film separator impermeable gas.
Detailed description of the invention
It is compressed, Normal squeezing to 0.2-1.0MPa as it is shown in figure 1, (1) uses compressor 1 will contain helium Water Soluble Gas (, containing helium 0.1%～10%, remaining is methane, nitrogen for room temperature-100 DEG C, aqueous about 1-80%)；
(2) compression that step (1) is obtained carry out cooling down containing helium Water Soluble Gas, separatory, wherein water content is down to about 0.5-2%；
(3) compression after step (2) separatory is sent into the further dehumidification of cooling driers 2 containing helium Water Soluble Gas, water content is down to 5000 below ppm (0-10 DEG C)；
(4) by step (3) cooling driers 2 export more be dried containing helium gas send into dehumidification membrane separator 3, dehumidification film is strongly hydrophilic material, only water vapor permeable, and other gas component is not through.Water content can be down to below 100ppm.Its preferred dehumidification film is complete rich sulfonic acid polymeric membrane.
(5) the dry gas (0.2-1.0MPa) that step (4) dehumidification film impermeable gas 4 exports is sent into helium extraction membrane separator 9 and extract helium；
(6) helium of step (5) is extracted the impermeable side 10(0.2-1.0MPa of membrane separator 9) the exit portion gas dehumidification membrane separator per-meate side 5 entrance purging that returns in step (3)；Infiltration gas 12(is containing helium 10%～90%) it is sent to out-of-bounds by per-meate side 11 outlet；
(7) step (6) dehumidification membrane separator per-meate side 5 steam and purge gas 13 export aqueous (different according to temperature and purging tolerance, water content is up to the 0.1～4%) gas obtained to be pumped outside out-of-bounds by vacuum pump 7.
Step (4) dehumidification membrane permeation side 5 purges the impermeable gas 14(tail gas that gas is step (6)).
Step (7) dehumidification membrane separator per-meate side 5 content of water in gas is about 0.1～4%.
Step 1) will contain helium Water Soluble Gas and be compressed to 0.2-1.0MPa.
The present invention is strongly hydrophilic material, only water vapor permeable containing dehumidification film used by helium Water Soluble Gas dehumidification method, and other gas component is not through, and does not results in helium loss in drying.Present invention Water Soluble Gas dehumidification method Han helium make use of the feature that membrane separation technique membrane separator impermeable gas (tail gas) water content is low, impermeable gas pressure the most relatively low (0.05～0.1MPa) simultaneously, utilize a portion as dehumidification membrane separator per-meate side purge gas, need not additionally arrange dry source purge gas, can effectively reduce dehumidification membrane permeation simultaneously and survey water vapor partial pressure, it is ensured that dehumidification effect.
Claims (6)
1. one kind there is no that helium loses containing helium Water Soluble Gas dehumidification method, it is characterised in that: comprise the steps:
(1) use compressor will contain helium Water Soluble Gas to be compressed；
(2) compression that step (1) is obtained carry out cooling down containing helium Water Soluble Gas, separatory, wherein water content is down to 0.5-2%；
(3) compression after step (2) separatory is sent into the further dehumidification of cooling driers containing helium Water Soluble Gas, water content is down to 5000 below ppm；
(4) by step (3) cooling driers export more be dried containing helium gas send into dehumidification membrane separator, water content is down to below 100ppm；
(5) the dry gas that step (4) dehumidification film impermeable gas exports is sent into helium and extract membrane separator extraction helium；
(6) helium of step (5) is extracted the dehumidification membrane separator per-meate side entrance purging that membrane separator impermeable side outlet portion gas returns in step (3)；Infiltration gas is sent to out-of-bounds by per-meate side outlet；
(7) step (6) dehumidification membrane separator per-meate side steam and purge gas are exported the aqueous gas obtained to be pumped outside out-of-bounds by vacuum pump.
2. a kind of as described in claim 1 there is no that helium loses containing helium Water Soluble Gas dehumidification method, it is characterised in that: step (1) will contain helium Water Soluble Gas and be compressed to 0.2-1.0MPa.
3. a kind of as described in claim 1 there is no that helium loses containing helium Water Soluble Gas dehumidification method, it is characterised in that: step (4) dehumidification membrane permeation blowing gas is the impermeable gas of step (6).
4. a kind of as described in claim 1 there is no that helium loses containing helium Water Soluble Gas dehumidification method, it is characterised in that: step (4) dehumidification film is strongly hydrophilic material, only water vapor permeable, and other gas component is not through.
5. a kind of as described in claim 4 there is no that helium loses containing helium Water Soluble Gas dehumidification method, it is characterised in that: described dehumidification film is complete rich sulfonic acid polymeric membrane.
6. a kind of as described in claim 1 there is no that helium loses containing helium Water Soluble Gas dehumidification method, it is characterised in that: step (7) dehumidification membrane separator per-meate side content of water in gas is about 0.1～4%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610358126.5A CN105879594B (en) | 2016-05-26 | 2016-05-26 | A kind of dehumidification method of Water Soluble Gas containing helium without helium loss |
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| CN201610358126.5A CN105879594B (en) | 2016-05-26 | 2016-05-26 | A kind of dehumidification method of Water Soluble Gas containing helium without helium loss |
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| CN105879594A true CN105879594A (en) | 2016-08-24 |
| CN105879594B CN105879594B (en) | 2018-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333336A (en) * | 2018-01-12 | 2018-07-27 | 大连交通大学 | A kind of novel helicobacter pylori detector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675030A (en) * | 1983-10-11 | 1987-06-23 | Costain Petrocarbon Limited | Purification of helium |
| CN1048683A (en) * | 1989-05-12 | 1991-01-23 | 联合碳化工业气体技术公司 | Drying, high purity nitrogen production process and system |
| JP2002188982A (en) * | 2000-12-21 | 2002-07-05 | Yoshio Tanokura | Highly purifying system for hydrogen gas and helium gas for analyzer |
| CN1903703A (en) * | 2006-08-04 | 2007-01-31 | 四川亚联高科技有限责任公司 | Technological method of purifying hydrogen of hydrogen enriched gas source |
| CN102026702A (en) * | 2008-05-12 | 2011-04-20 | 膜技术研究股份有限公司 | Gas-separation process using membranes with permeate sweep to remove co2 from combustion gases |
| CN201815225U (en) * | 2010-10-20 | 2011-05-04 | 西梅卡亚洲气体系统成都有限公司 | Air membrane separation device adopting hollow fiber membrane drying technique |
-
2016
- 2016-05-26 CN CN201610358126.5A patent/CN105879594B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675030A (en) * | 1983-10-11 | 1987-06-23 | Costain Petrocarbon Limited | Purification of helium |
| CN1048683A (en) * | 1989-05-12 | 1991-01-23 | 联合碳化工业气体技术公司 | Drying, high purity nitrogen production process and system |
| JP2002188982A (en) * | 2000-12-21 | 2002-07-05 | Yoshio Tanokura | Highly purifying system for hydrogen gas and helium gas for analyzer |
| CN1903703A (en) * | 2006-08-04 | 2007-01-31 | 四川亚联高科技有限责任公司 | Technological method of purifying hydrogen of hydrogen enriched gas source |
| CN102026702A (en) * | 2008-05-12 | 2011-04-20 | 膜技术研究股份有限公司 | Gas-separation process using membranes with permeate sweep to remove co2 from combustion gases |
| CN201815225U (en) * | 2010-10-20 | 2011-05-04 | 西梅卡亚洲气体系统成都有限公司 | Air membrane separation device adopting hollow fiber membrane drying technique |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333336A (en) * | 2018-01-12 | 2018-07-27 | 大连交通大学 | A kind of novel helicobacter pylori detector |
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| CN105879594B (en) | 2018-11-20 |
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